Insecticide.



ate Brewing.

UNITED STATES PATENT OFFICE.

canteens st rs, or JLARCHMO-N'I, Yonk, ass'renensr ursue xssieniinn rs, 'ro oHAnE'LoI'D CHEMICAL COMPANY, or NnwYoRK, N. A conromrion or VIRGINIA.

insnc'ricmn.

1,632,5 Specification of Letters Patent.

Todfll w'hom'it may concern. K

Be it known that I, CARLET'oiv ELLIs, a citizen of the United States, residing at Larchfn'ont, in the county of Westches'ter its action, but has little or no effect upon varnished woodwork or similar surfaces with'which it may come in contact; and comprises waxand carbon bisulfid, or similar penetrating organic liquid,- preferably in combination with an aqueous solution having insecticidal properties.

The great objection heretofore foundin the use of carbon bisulfid is that of its ex tremely volatile character, so that its action lasts only for a short period of time. Its use has therefore been largely confined to the treatment of grain in storage, and the like, where its vapors may be to a great extent confined and in close contact with the materials to be treated. For application to exposed surfaces, it has hitherto been found extremely difficult to obtain satisfactory results with carbon bisulfid, because of its great volatility.

My invention overcomes these objections .and produces a composition of great'eificie cy for this purpose.

comprlses a solutlon of wax in carbon b1-:

The composition sulfid, or similar penetrating organic liquid,

emulsified with an aqueous solution, consideraldly thickened for the purpose of emulsification, and carrying in solution a powerf-ul insecticide such as inorganic com-pounds like bichlorid of mercury and ammonium fiuorid, or' organic compounds like ammonium formate, etc.

A suitable illustrative formula may comprise one-half pound of paraffin wax dissolved in carbon bisulfid to make a total volume of one-half gallon emulsified with an aqueous solution of mercuric chlorid and ammonium chlorid, thickened with Irish moss; inthe proportion of one-half gallon of water, six ounces of mercuric chlorid, twelve ounces of ammonium chlorid and two ounces of Irish moss. To prepare this composition, I soak the Irish moss in water until the latter is well softened, then heat'to boil- Application filed March 11, 1908. Serial in. 120328.

Patented beesogieis.

ing with stirring until the ino'ss is dissolved. The solution may then be strained, toremove any undis'solved matter, and while "still wax may be used if desired. Other emulsifying' agents may be used in lieu of Irish moss, such, for instance, as casein or slmilar thlckenlng materlals; ammomum fiuorid or formate may be substituted for the ammonium chlorid, as well as for the mercuric chlorid, if desired, although when using ammonium fiuorid contact with glass should be avolded, as it has an etching action upon glass. The ammonium fiuorid composition may, however, be packed in glass containers,

as the slight local action upon the glass has no material deteriorating action upon the composition as awhole. Other organic liquids may be used alone or in conjunction with carbon bisulfid in suchcompositions as for example substantially water insoluble hydro-carbons classed among the naphthas as b'enzol, also turpentine, rosin spirits, and the like; likewisechlorid of carbon, such as carbon tetrachlorid. The well known property of non-inflammability possessed by the latter makes its use at times advantagetfis;

I do not herein limit myself" solely .to t

use of carbon bisulfid, but may employ some of the above mentioned volatile organic bodies, or their equivalents, in my improved composition.

What I claim is 1. An insecticide comprising a slowly evaporating emulsion including a waxy body,

carbon bisulfid and an aqueous solution of an inorganic salir'having insecticidal properties. r 2. An insecticide comprising an emulsion of carbon bisulfid carrying wax in so.'.1t-ion, with a proteid thickened aqueous solution of mercuric chlorid.

3. A11 insecticide comprising carbon bisulfid containing dissolved wax emulsified with an aqueous solution of a mineral salt having insecticidal properties, said aqueous solution carrying a thickener imparting consistency thereto.

4;. An insecticide comprising a solution of paraffin in carbon bisulfid emulsified with Y substantially an equalvolume of an aqueous solution of mercuric chlorid thickened with Irish moss.

5. An insecticide comprising an emulsion of a substantially Water insoluble highly volatile organic liquid carrying wax in solution; emulsified with an aqueous solution of an inorganic salt having powerful insecti ciclal properties; said aqueous solution carrying a thickener imparting consistency. thereto.

6. An insecticide consisting of an emulsion of a solution of wax in a substantially water insoluble volatile organic liquid, with an aqueous emulsifier carrying an inorganic water-soluble compound having' powerful insecticidal properties.

7. An insecticide comprising an emulsion of a solution of wax in a volatile organic wax solvent liquid substantially insoluble in water emulsified with a substantially neutral aqueous emulsifier comprising a strong mineral insecticide dissolved therein.

In testimony whereof I have aflixed my signature in presence of two witnesses.

CARLETON ELLIS. Witnesses:

NATHANIEL L. FOSTER, HENRIETTA BERKWITZ. 

